Removable wire line connecter for sand pumps and the like



Sept. 29, 1936.

c. E; MURRAY EEMovABLE wIRE LINE CONNECTER EOE SAND PUMPS AND TEE LIKE Filed Sept. 3, 1955 .gua-i.'

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mung@ WW@ m Patented Sept. 29, 1936 NITED STATES PATENTA vOFFICE REMOVABLE WIRE LINE CONNECTER FOR SAND PUMPS AND THE LIKE v Application September 3, 1935, Serial No. 38,921 s claims. (ci. 16s- 19) l pl'Ovlde 2. Sand Dump With an improved plunger connection with the line so that the valve of theV plunger operates free of the line, thereby assuring positive action of the valve.

M In accomplishing these and other objects of the,

invention, I have provided improved details of structure, the preferred forms of which are illustrated in the accompanying drawing wherein:

Fig. i is a vertical section through the lower portion ci a well illustrating the use of a sand pump equipped with a wire line connecter emhedging the features of the present invention, the sand pump also being shown in section to better illustrate the connecter.

Fig. 2 is a perspective view of parts oi the line connecter and bail of the pump shown in disassembled spaced relation.

Fig. 3 is a horizontal section through the bail portion of the pump on the line 3 3 of Fig. 1.

Fig. iis a similar section on the line i-d ci Fig. l. v

Fig. 5 is e. vertical section through the socket sleeve member as applied to the stem of a string of drilling'toois.

Fig. d is a perspective section of the upper portion -of a bailer equipped with a slightly modifled form oi connecter.

Fig. 7 is a perspective view of a lock member into which the debris is drawn upon operation ot.

a piston 3, later described.

In the illustrated instance, the lower end of the barrel is closed by a chisel-shaped bottom 9 having a suitable valve (not shown) for trapping the v'debris after it has been drawn into the chamber of the barrel. The upper end of the barrel c'arries a ball l0 including a hollow cylindrical body II terminating at its lower end in a reduced collar I2 that is inset into the upper end of the barrel, as best illustrated in Fig. l, the collar i 2 being secured to the barrel by means of suitable fastening devices such as rivets I3. If desired, the collar of the bail may also be welded to the upper end of the barrel, as indicated at i4.

The opposite end of the bail terminates in a reduced cylindrical head portion i5 carrying a tapered externally threaded pin i6 for mounting a rope socket sleeve il, later described. The opposite side walls of the bail are cut away to provide openings i8 extending from the head it down-` wardly to adjacent the collar i2, wherethrough the wire line socket i@ may be connected or disconnected from the piston 8. The piston t includes a cylindrical wall 2i), of suitable diameter to snugly engage the inner face of the barrel, and

. is provided with a series of sealing grooves 2i to contain a sealing material for preventing leakage of air or liquid thereby when the piston is drawn toward the top of the barrel. Inset in the lower end of the piston is a valve seat ring 22 for seating a ball valve 23 which closes a port 24 extending therethrough. Upward movement of the ball is limited by means of a pin 25 extending diametrically across the piston at a point spaced above the ball. Also extending across the piston at the upper end thereof is a wrist pin 26 on which is mounted the eye 2l of a rod 28, having its upper end 2@ threadingly mounted in a bore 3U formed inthe lower end of the line socket i9. The line socket i9 is ordinarily locked against rotation relatively to the connecting rod by means of a'lock nut 3i threaded on the rod and engaging the lower end of the socket, as shown in Fig. l.

The opposite end of the line socket is provided with an axial bore 32 terminating in an outwardly expanding lateral bore 33 that extends through the side face of the line socket to form an opening 34, wherethrough Babbitt metal is poured to se-v cure the loosened strands 35 of aline 36 by which the sand pump is lowered into the well.

In order to pass the line, the neck portion and threaded pin of the bail have an axial bore 3l that is intersected by a longitudinal slot 38 extending from the outer periphery of the neck into the bore, and which is of substantially the same width as the diameter of the line so that the line can be passed therethrough and into the bore without removal of the line socket I9. The slot 38 is ordinarily closed by a lock member 39 hav.- ing a rectangular portion 40 for substantially filling the slot when the lock is inserted therein. The upper end of the lock terminates in a wedge extending Athrough the pin I6.

In order to prevent longitudinal movement of the lock member kwithin the slot, it is provided with radially extending wings or lugs 42 having at inner faces 43 adapted to engage the bottom faces 44 of a transverse groove extending horizontally across the slot 38 when the lock is inserted therein. The upper and lower faces 45 of the lugs closely engage the sides 46 of the grooves and their outer faces 41 are rounded in conformity to the diameter of the base of the pin. The 'tapered portion of the lock is inset a suicient distance so as to not interfere with the threads 48 'of the sleeve member I1 that is threadingly mounted on the pin to prevent outward movement of the upper end of the lock member after it has been inserted in the slot. In order to prevent outward movement of the lower end of the lock member, the head I5 at one side of the slot is provided with a recess 49 to accommodate the head 50 of a set screw 5I that is threaded into an opening 52 to engage against the side face of the lock member, as best illustrated in Fig. 4.

The sleeve vmember I1 extends upwardly from the threaded socket thereof and has a polygonal shaped portion 53 for applying a wrench Wherewith the sleeve is threaded on the pin of the bail. Formed on the sleeve above the polygonal shaped portion is a neck 54 having teeth 55 adapted to be gripped by a suitable shing tool in case of breakage of the line.

The socket sleeve member I1 is of suiicient l length to provide a recess 56 of sufcient dimensions to accommodate the rope socket therein when the line is connected to a drill stem, as shown in Fig. 5. In thisV instance, the socket sleeve member is sleeved over the line socket and screwed'd'irectly to the threaded pin 58 of the drill stem 59.

In Fig. 6 is illustrated the adaptation of the invention to a bailer wherein the bail 60 terminates in a cylindrical head 6I having a slot 62 similar to the slot 38 previously described in connection with the form of the invention shown in Fig. 1,- and which is closed by an insert 63, illustrated in Fig. 7. In this instance, the insert 63 does not extend the full length of the slot, but only closes a portion thereof adjacent the base of a threaded pin 64 to which the sleeve member 65 is threaded, as in substantially the same manner as the preferred form of the invention.

In using a sand pump constructed as described, and assuming that it is to be connected to the line, the line is passed through the slot 38 so that it enters the bore 31 of the bail.. The socket connecter I9 is then connected `to the threaded end of the connecting rod 28 and secured by the lock nut 3I. The lock member 39 is then inserted in the slot 38 so that the lugs 42 thereon engage l in the transverse groove of the threaded pin I6.

The sleeve member I1, which has been sleeved on the line previously to the application of the socket member I9, is then moved downwardly into threaded engagement with the pin of the bail, as shown in Fig. 1. When in this position, the skirt portion of the sleeve encompasses the wedge shaped end of the lock member to prevent its lateral displacement from the slot. The lower end of the lock member is then secured by means of the set screw 50 that is threaded into the opening 52 so that the end thereof engages the side face of the lock.

When the pump is run into the well, it is supported from the line by means of the line con- `shaped end 4I for lling the portion of the slot necter I4, that is, the upper end of the line connecter is engaged by the neck portion of the bail, and the piston is retained in the upper end of the barrel. When the sand pump reaches the bottom of the well the line 36 may be reciprocated to cause the chisel shaped bottom to break up and agitate the debris to mix it with the iluid contained in the well. The piston is then allowed to gravitate to the bottom of the barrel by allowing slack in the line 36. 'Ihe piston drops freely to the bottom of the barrel, due to the fact, that the ball valve raises from its seat and allows the discharge of air or liquid from the lower end of the piston chamber. When the piston has rreached the lower end of the barrel, the slack is taken up on the line to draw the piston toward the top of the barrel, inducing a vacuum in the piston chamber to draw the debris through the chisel bottom into the barrel Where it is trapped by the valve contained therein.

Upon upward movement of the piston, the ball valve 23 seats to retain the vacuum until a full charge has been drawn` into the barrel. When the line socket again engages against the head of the bail the pump is raised from the bottom of the well. Continued lift on the line withdraws the pump so that the entrappeddebris can be removed at the top of the well. After removal of the debris the pump is again lower to the bottom of the Well to continue the operation.

It is apparent that the pump may be readily connected and disconnected from the line without cutting thereof, by simply unscrewing the sleeve I 1 and loosening the set screw to allow removal of the lock member from the slot 38. After removal of the lock member, the line socket is disconnected from the connecting rod of the piston so that the line is drawn from the slot to free the pump. A string of tools, or jars .and a drilling stem, or the like, may then be connected to the line, as clearly illustrated in Fig. 5, or the line may be connected with a bailer, as shown in Fig. 6.

What I claim and desire to secure by Letters Patent is: 1. In an apparatus ofthe character described, a bail member having a bore intersected by a slot extending longitudinally of the bore for admitting a line intol the bore, a lock member inserted in the slot to retain the line, and a sleeve member threaded over the line and engaging the bail member to secure the lock member.

2. In an apparatus of the character described, a bail member having a bore intersected by a slot extending longitudinally of the bore for admitting a line into the bore, a lock member inserted in the slot to retain'the line, a sleeve member threaded over the line and having threaded engagement with the bail member to secure one end of the lock member, and a set screw carried-by the bail member for securing the opposite end of the lock member.

` for preventing longitudinal movement of the lock member within the slot.

4. In an apparatus of the character described, a bail member having a bore intersected by a slot extending longitudinally of the bore for admitting a line into the bore and having a groove extending transversely of the slot, a lock member inserted in lthe slot to retain the line and having iugsvengaging in said groove to prevent longitudinal movement of the lock member, and a sleeve connected with the bail member and sleeved over the lock member for preventing outward movement of the lock member.

5. In a tool of the character Idescribed a bail member provided with a threaded pin having a bore and .a slot extending longitudinally of the bore to pass a line for actuating the tool, an insert in said slot for retaining the line, and a sleeve member on the line having threaded engagement with the pin for retaining the insert. l

6. In an apparatus of the character described, a. bail member having a. bore intersected by a slot extending longitudinally of the bore for admitting a line into the bore, and means including a. sleeve removably engaged with the bail member and extending across said slot for retaining the line in said bore.

- CHARLES E. MURRAY. 

